References (57)

Citations (466)

Using the URL or DOI link below will
ensure access to this page indefinitely

Based on your IP address, your paper is being delivered by:

New York, USA

Processing request.

Illinois, USA

Processing request.

Brussels, Belgium

Processing request.

Seoul, Korea

Processing request.

California, USA

Processing request.

If you have any problems downloading this paper,please click on another Download Location above, or view our FAQFile name: SSRN-id1317359. ; Size: 409K

You will receive a perfect bound, 8.5 x 11 inch, black and white printed copy of this PDF document with a glossy color cover. Currently shipping to U.S. addresses only. Your order will ship within 3 business days. For more details, view our FAQ.

Quantity:Total Price = $9.99 plus shipping (U.S. Only)

If you have any problems with this purchase, please contact us for assistance by email: Support@SSRN.com or by phone: 877-SSRNHelp (877 777 6435) in the United States, or +1 585 442 8170 outside of the United States. We are open Monday through Friday between the hours of 8:30AM and 6:00PM, United States Eastern.

We investigate which provisions, among a set of twenty-four governance provisions followed by the Investor Responsibility Research Center (IRRC), are correlated with firm value and stockholder returns. Based on this analysis, we put forward an entrenchment index based on six provisions - four constitutional provisions that prevent a majority of shareholders from having their way (staggered boards, limits to shareholder bylaw amendments, supermajority requirements for mergers, and supermajority requirements for charter amendments), and two takeover readiness provisions that boards put in place to be ready for a hostile takeover (poison pills and golden parachutes). We find that increases in the level of this index are monotonically associated with economically significant reductions in firm valuation, as measured by Tobin's Q. We present suggestive evidence that the entrenching provisions cause lower firm valuation. We also find that firms with higher levels of the entrenchment index were associated with large negative abnormal returns during the 1990-2003 period. Moreover, examining all sub-periods of two or more years within this period, we find that a strategy of buying low entrenchment firms and selling short high entrenchment firms out-performs the market in most such periods and does not under-perform the market even in a single sub-period. Finally, we find that the provisions in our entrenchment index fully drive the correlation, identified by prior work, that the IRRC provisions in the aggregate have with reduced firm value and lower stock returns during the 1990s; we do not find any evidence that the other eighteen IRRC provisions are negatively correlated with either firm value or stock returns during the 1990-2003 period.

Data on the entrenchment index for the period 1990-2007, and a list of over seventy-five studies using our entrenchment index, is available for downloading at Lucian Bebchuk's home page.